Fix typo in last commit

[wxWidgets.git] / src / gtk1 / textctrl.cpp

diff --git a/src/gtk1/textctrl.cpp b/src/gtk1/textctrl.cpp
index b6033cce3a4d997992540767f5c3d57a25542e18..7ce0d35e3d62abfd17c9d6ef6fc0b2c2e9350628 100644 (file)
--- a/src/gtk1/textctrl.cpp
+++ b/src/gtk1/textctrl.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        textctrl.cpp
+// Name:        src/gtk1/textctrl.cpp

 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$


@@ -7,662 +7,1367 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "textctrl.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"

 
 #include "wx/textctrl.h"
 
 #include "wx/textctrl.h"

-#include "wx/utils.h"
-#include <wx/intl.h>
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/utils.h"
+    #include "wx/panel.h"
+    #include "wx/settings.h"
+    #include "wx/math.h"
+#endif
+
+#include "wx/strconv.h"
+#include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
+#include "wx/evtloop.h"

 
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <ctype.h>
 
 
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <ctype.h>
 

+#include "wx/gtk1/private.h"
+#include <gdk/gdkkeysyms.h>
+
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+
+//-----------------------------------------------------------------------------
+// data
+//-----------------------------------------------------------------------------
+
+extern wxCursor   g_globalCursor;
+extern wxWindowGTK *g_delayedFocus;
+
+// ----------------------------------------------------------------------------
+// helpers
+// ----------------------------------------------------------------------------
+
+extern "C" {
+static void wxGtkTextInsert(GtkWidget *text,
+                            const wxTextAttr& attr,
+                            const char *txt,
+                            size_t len)
+{
+    wxFont tmpFont;
+    GdkFont *font;
+    if (attr.HasFont())
+    {
+        tmpFont = attr.GetFont();
+
+        // FIXME: if this crashes because tmpFont goes out of scope and the GdkFont is
+        // deleted, then we need to call gdk_font_ref on font.
+        // This is because attr.GetFont() now returns a temporary font since wxTextAttr
+        // no longer stores a wxFont object, for efficiency.
+
+        font = tmpFont.GetInternalFont();
+    }
+    else
+        font  = NULL;
+
+    GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
+                                           : NULL;
+
+    GdkColor *colBg = attr.HasBackgroundColour()
+                        ? attr.GetBackgroundColour().GetColor()
+                        : NULL;
+
+    gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
+}
+}
+
+// ----------------------------------------------------------------------------
+// "insert_text" for GtkEntry
+// ----------------------------------------------------------------------------
+
+extern "C" {
+static void
+gtk_insert_text_callback(GtkEditable *editable,
+                         const gchar *WXUNUSED(new_text),
+                         gint WXUNUSED(new_text_length),
+                         gint *WXUNUSED(position),
+                         wxTextCtrl *win)
+{
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    // we should only be called if we have a max len limit at all
+    GtkEntry *entry = GTK_ENTRY (editable);
+
+    wxCHECK_RET( entry->text_max_length, wxT("shouldn't be called") );
+
+    // check that we don't overflow the max length limit
+    //
+    // FIXME: this doesn't work when we paste a string which is going to be
+    //        truncated
+    if ( entry->text_length == entry->text_max_length )
+    {
+        // we don't need to run the base class version at all
+        gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
+
+        // remember that the next changed signal is to be ignored to avoid
+        // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
+        win->IgnoreNextTextUpdate();
+
+        // and generate the correct one ourselves
+        wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
+        event.SetEventObject(win);
+        event.SetString(win->GetValue());
+        win->HandleWindowEvent( event );
+    }
+}
+}
+

 //-----------------------------------------------------------------------------
 //  "changed"
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 //  "changed"
 //-----------------------------------------------------------------------------
 

-static void gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
+extern "C" {
+static void
+gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )

 {
 {

-  win->SetModified();
-  
-  wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->m_windowId );
-  wxString val( win->GetValue() );
-  if (!val.IsNull()) event.m_commandString = WXSTRINGCAST val;
-  event.SetEventObject( win );
-  win->GetEventHandler()->ProcessEvent( event );
+    if ( win->IgnoreTextUpdate() )
+        return;
+
+    if (!win->m_hasVMT) return;
+
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    win->SetModified();
+    win->UpdateFontIfNeeded();
+
+    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
+    event.SetEventObject( win );
+    win->HandleWindowEvent( event );
+}
+}
+
+//-----------------------------------------------------------------------------
+// "changed" from vertical scrollbar
+//-----------------------------------------------------------------------------
+
+extern "C" {
+static void
+gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
+{
+    if (!win->m_hasVMT) return;
+
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    win->CalculateScrollbar();
+}
+}
+
+// ----------------------------------------------------------------------------
+// redraw callback for multiline text
+// ----------------------------------------------------------------------------
+
+// redrawing a GtkText from inside a wxYield() call results in crashes (the
+// text sample shows it in its "Add lines" command which shows wxProgressDialog
+// which implicitly calls wxYield()) so we override GtkText::draw() and simply
+// don't do anything if we're inside wxYield()
+
+extern "C" {
+    typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
+}
+
+static GtkDrawCallback gs_gtk_text_draw = NULL;
+
+extern "C" {
+static void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
+{
+    wxEventLoopBase* loop = wxEventLoopBase::GetActive();
+    if ( loop && !loop->IsYielding() )
+    {
+        wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
+                     wxT("infinite recursion in wxgtk_text_draw aborted") );
+
+        gs_gtk_text_draw(widget, rect);
+    }
+}

 }
 
 //-----------------------------------------------------------------------------
 //  wxTextCtrl
 //-----------------------------------------------------------------------------
 
 }
 
 //-----------------------------------------------------------------------------
 //  wxTextCtrl
 //-----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
+BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
+    EVT_CHAR(wxTextCtrl::OnChar)
+
+    EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
+    EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
+    EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
+    EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
+    EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)

 
 

-BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
-  EVT_CHAR(wxTextCtrl::OnChar)
+    EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
+    EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
+    EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
+    EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
+    EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)

 END_EVENT_TABLE()
 
 END_EVENT_TABLE()
 

-wxTextCtrl::wxTextCtrl() : streambuf()
+void wxTextCtrl::Init()

 {
 {

-  if (allocate()) setp(base(),ebuf());
+    m_ignoreNextUpdate =
+    m_modified = false;
+    SetUpdateFont(false);
+    m_text =
+    m_vScrollbar = NULL;
+}

 
 

-  m_modified = FALSE;
+wxTextCtrl::~wxTextCtrl()
+{

 }
 
 }
 

-wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
-      const wxPoint &pos, const wxSize &size,
-      int style, const wxValidator& validator, const wxString &name ) : streambuf()
+wxTextCtrl::wxTextCtrl( wxWindow *parent,
+                        wxWindowID id,
+                        const wxString &value,
+                        const wxPoint &pos,
+                        const wxSize &size,
+                        long style,
+                        const wxValidator& validator,
+                        const wxString &name )

 {
 {

-  if (allocate()) setp(base(),ebuf());
+    Init();

 
 

-  m_modified = FALSE;
-  Create( parent, id, value, pos, size, style, validator, name );
+    Create( parent, id, value, pos, size, style, validator, name );

 }
 
 }
 

-bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
-      const wxPoint &pos, const wxSize &size,
-      int style, const wxValidator& validator, const wxString &name )
+bool wxTextCtrl::Create( wxWindow *parent,
+                         wxWindowID id,
+                         const wxString &value,
+                         const wxPoint &pos,
+                         const wxSize &size,
+                         long style,
+                         const wxValidator& validator,
+                         const wxString &name )

 {
 {

-  m_needParent = TRUE;
+    m_needParent = true;
+    m_acceptsFocus = true;

 
 

-  PreCreation( parent, id, pos, size, style, name );
+    if (!PreCreation( parent, pos, size ) ||
+        !CreateBase( parent, id, pos, size, style, validator, name ))
+    {
+        wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
+        return false;
+    }

 
 

-  SetValidator( validator );

 
 

-  bool bMultiLine = (style & wxTE_MULTILINE) != 0;
-  if ( bMultiLine )
-  {
-    // a multi-line edit control: create a vertical scrollbar by default and
-    // horizontal if requested
-    bool bHasHScrollbar = (style & wxHSCROLL) != 0;
+    m_vScrollbarVisible = false;

 
 

-    // create our control...
-    m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
+    bool multi_line = (style & wxTE_MULTILINE) != 0;

 
 

-    // ... and put into the upper left hand corner of the table
-    m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
-    gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
+    if (multi_line)
+    {
+        // create our control ...
+        m_text = gtk_text_new( NULL, NULL );
+
+        // ... and put into the upper left hand corner of the table
+        bool bHasHScrollbar = false;
+        m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
+        GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
+        gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,

                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
                        0, 0);
 
                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
                        0, 0);
 

-    // put the horizontal scrollbar in the lower left hand corner
-    if (bHasHScrollbar) 
-    {
-      GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
-      gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
-                       (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),
-                       GTK_FILL,
-                       0, 0);
-      gtk_widget_show(hscrollbar);
-    }
+        // always wrap words
+        gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );

 
 

-    // finally, put the vertical scrollbar in the upper right corner
-    GtkWidget *vscrollbar = gtk_vscrollbar_new(GTK_TEXT(m_text)->vadj);
-    gtk_table_attach(GTK_TABLE(m_widget), vscrollbar, 1, 2, 0, 1,
+        // finally, put the vertical scrollbar in the upper right corner
+        m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
+        GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
+        gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,

                      GTK_FILL,
                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
                      0, 0);
                      GTK_FILL,
                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
                      0, 0);

-    gtk_widget_show( vscrollbar );
-  }
-  else 
-  {
-    // a single-line text control: no need for scrollbars
-    m_widget =
-    m_text = gtk_entry_new();
-  }
-
-  wxSize newSize = size;
-  if (newSize.x == -1) newSize.x = 80;
-  if (newSize.y == -1) newSize.y = 26;
-  SetSize( newSize.x, newSize.y );
-
-  m_parent->AddChild( this );
-
-  (m_parent->m_insertCallback)( m_parent, this );
-  
-  PostCreation();
-
-  if (bMultiLine) 
-  {
-    gtk_widget_realize(m_text);
-    gtk_widget_show(m_text);
-  }
-
-  // we want to be notified about text changes
-  gtk_signal_connect(GTK_OBJECT(m_text), "changed",
-                     GTK_SIGNAL_FUNC(gtk_text_changed_callback),
-                     (gpointer)this);
-
-  if (!value.IsNull())
-  {
-    gint tmp = 0;
-    gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
-    SetInsertionPointEnd();
-  }
-
-  if (style & wxTE_READONLY)
-  {
-  }
-  else
-  {
-    if (bMultiLine)
-      gtk_text_set_editable( GTK_TEXT(m_text), 1 );
-  }
-
-  Show( TRUE );
-
-  SetBackgroundColour( parent->GetBackgroundColour() );
-  SetForegroundColour( parent->GetForegroundColour() );
-
-  return TRUE;
-}
-
-wxString wxTextCtrl::GetValue() const
-{
-  wxCHECK_MSG( m_text != NULL, "", "invalid text ctrl" );
-  
-  wxString tmp;
-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_text) );
-    char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
-    tmp = text;
-    g_free( text );
-  }
-  else
-  {
-    tmp = gtk_entry_get_text( GTK_ENTRY(m_text) );
-  }
-  return tmp;
-}
-
-void wxTextCtrl::SetValue( const wxString &value )
-{
-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  wxString tmp = "";
-  if (!value.IsNull()) tmp = value;
-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_text) );
-    gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
-    len = 0;
-    gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp, tmp.Length(), &len );
-  }
-  else
-  {
-    gtk_entry_set_text( GTK_ENTRY(m_text), tmp );
-  }
+    }
+    else
+    {
+        // a single-line text control: no need for scrollbars
+        m_widget =
+        m_text = gtk_entry_new();
+    }
+
+    m_parent->DoAddChild( this );
+
+    m_focusWidget = m_text;
+
+    PostCreation(size);
+
+    if (multi_line)
+        gtk_widget_show(m_text);
+
+    if (multi_line)
+    {
+        gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
+          (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
+
+        // only initialize gs_gtk_text_draw once, starting from the next the
+        // klass::draw will already be wxgtk_text_draw
+        if ( !gs_gtk_text_draw )
+        {
+            GtkDrawCallback&
+                draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
+
+            gs_gtk_text_draw = draw;
+
+            draw = wxgtk_text_draw;
+        }
+    }
+
+    if (!value.empty())
+    {
+#if !GTK_CHECK_VERSION(1, 2, 0)
+        // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
+        // gtk_editable_insert_text()
+        gtk_widget_realize(m_text);
+#endif // GTK 1.0
+
+        gint tmp = 0;
+#if wxUSE_UNICODE
+        wxWX2MBbuf val = value.mbc_str();
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
+#else
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.length(), &tmp );
+#endif
+
+        if (multi_line)
+        {
+            // Bring editable's cursor uptodate. Bug in GTK.
+            SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
+        }
+    }
+
+    if (style & wxTE_PASSWORD)
+    {
+        if (!multi_line)
+            gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
+    }
+
+    if (style & wxTE_READONLY)
+    {
+        if (!multi_line)
+            gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
+    }
+    else
+    {
+        if (multi_line)
+            gtk_text_set_editable( GTK_TEXT(m_text), 1 );
+    }
+
+    // We want to be notified about text changes.
+    gtk_signal_connect( GTK_OBJECT(m_text), "changed",
+        GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+    m_cursor = wxCursor( wxCURSOR_IBEAM );
+
+    wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
+    SetDefaultStyle( attrDef );
+
+    return true;

 }
 
 }
 

-void wxTextCtrl::WriteText( const wxString &text )
+
+void wxTextCtrl::CalculateScrollbar()
+{
+    if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
+
+    GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
+
+    if (adj->upper - adj->page_size < 0.8)
+    {
+        if (m_vScrollbarVisible)
+        {
+            gtk_widget_hide( m_vScrollbar );
+            m_vScrollbarVisible = false;
+        }
+    }
+    else
+    {
+        if (!m_vScrollbarVisible)
+        {
+            gtk_widget_show( m_vScrollbar );
+            m_vScrollbarVisible = true;
+        }
+    }
+}
+
+wxString wxTextCtrl::DoGetValue() const
+{
+    wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
+
+    wxString tmp;
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+        tmp = text;
+        g_free( text );
+    }
+    else
+    {
+        tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
+    }
+
+    return tmp;
+}
+
+void wxTextCtrl::DoSetValue( const wxString &value, int flags )

 {
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  if (text.IsNull()) return;
-
-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_text) );
-    gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
-  }
-  else
-  {
-    gtk_entry_append_text( GTK_ENTRY(m_text), text );
-  }
-}
-
-bool wxTextCtrl::LoadFile( const wxString &file )
-{
-  wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
-  
-  if (!wxFileExists(file)) return FALSE;
-
-  Clear();
-
-  FILE *fp = NULL;
-  struct stat statb;
-  
-  if ((stat ((char*) (const char*) file, &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
-      !(fp = fopen ((char*) (const char*) file, "r")))
-  {
-      return FALSE;
-  }
-  else
-  {
-    gint len = statb.st_size;
-    char *text;
-    if (!(text = (char*)malloc ((unsigned) (len + 1))))
-    {
-      fclose (fp);
-      return FALSE;
-    }
-    if (fread (text, sizeof (char), len, fp) != (size_t) len)
-       {
-       }
-    fclose (fp);
-
-    text[len] = 0;
-    
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if ( !(flags & SetValue_SendEvent) )
+    {
+        // do not generate events
+        IgnoreNextTextUpdate();
+    }
+

     if (m_windowStyle & wxTE_MULTILINE)
     {
     if (m_windowStyle & wxTE_MULTILINE)
     {

-      gtk_editable_insert_text( GTK_EDITABLE(m_text), text, 0, &len );
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
+        len = 0;
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.length(), &len );

     }
     else
     {
     }
     else
     {

-      gtk_entry_set_text( GTK_ENTRY(m_text), text );
+        gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );

     }
     }

-    
-    free (text);
-    m_modified = FALSE;
-    return TRUE;
-  }
-  return FALSE;
+
+    // GRG, Jun/2000: Changed this after a lot of discussion in
+    //   the lists. wxWidgets 2.2 will have a set of flags to
+    //   customize this behaviour.
+    SetInsertionPoint(0);
+
+    m_modified = false;

 }
 
 }
 

-bool wxTextCtrl::SaveFile( const wxString &file )
+void wxTextCtrl::WriteText( const wxString &text )

 {
 {

-  wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
-  
-  if (file == "") return FALSE;
-  
-  FILE *fp;
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if ( text.empty() )
+        return;
+
+    // gtk_text_changed_callback() will set m_modified to true but m_modified
+    // shouldn't be changed by the program writing to the text control itself,
+    // so save the old value and restore when we're done
+    bool oldModified = m_modified;

 
 

-  if (!(fp = fopen ((char*) (const char*) file, "w")))
+    if ( m_windowStyle & wxTE_MULTILINE )

     {
     {

-      return FALSE;
+        // After cursor movements, gtk_text_get_point() is wrong by one.
+        gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
+
+        // always use m_defaultStyle, even if it is empty as otherwise
+        // resetting the style and appending some more text wouldn't work: if
+        // we don't specify the style explicitly, the old style would be used
+        gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
+        wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.length());
+
+        // we called wxGtkTextInsert with correct font, no need to do anything
+        // in UpdateFontIfNeeded() any longer
+        if ( !text.empty() )
+        {
+            SetUpdateFont(false);
+        }
+
+        // Bring editable's cursor back uptodate.
+        SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));

     }
     }

-  else
+    else // single line

     {
     {

-      char *text = NULL;
-      gint len = 0;
-       
-      if (m_windowStyle & wxTE_MULTILINE)
-      {
-        len = gtk_text_get_length( GTK_TEXT(m_text) );
-        text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
-      }
-      else
-      {
-        text = gtk_entry_get_text( GTK_ENTRY(m_text) );
-      }
-      
-      if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
-       {
-         // Did not write whole file
-       }
-       
-      // Make sure newline terminates the file
-      if (text[len - 1] != '\n')
-       fputc ('\n', fp);
+        // First remove the selection if there is one
+        gtk_editable_delete_selection( GTK_EDITABLE(m_text) );

 
 

-      fclose (fp);
-      
-      if (m_windowStyle & wxTE_MULTILINE) g_free( text );
-      
-      m_modified = FALSE;
-      return TRUE;
+        // This moves the cursor pos to behind the inserted text.
+        gint len = GET_EDITABLE_POS(m_text);
+
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.length(), &len );
+
+        // Bring entry's cursor uptodate.
+        gtk_entry_set_position( GTK_ENTRY(m_text), len );

     }
 
     }
 

-  return TRUE;
+    m_modified = oldModified;

 }
 
 }
 

-wxString wxTextCtrl::GetLineText( long lineNo ) const
+void wxTextCtrl::AppendText( const wxString &text )

 {
 {

-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_text) );
-    char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+    SetInsertionPointEnd();
+    WriteText( text );
+}

 
 

-    if (text)
+wxString wxTextCtrl::GetLineText( long lineNo ) const
+{
+    if (m_windowStyle & wxTE_MULTILINE)

     {
     {

-        wxString buf("");
-        long i;
-        int currentLine = 0;
-        for (i = 0; currentLine != lineNo && text[i]; i++ )
-          if (text[i] == '\n')
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+
+        if (text)
+        {
+            wxString buf;
+            long i;
+            int currentLine = 0;
+            for (i = 0; currentLine != lineNo && text[i]; i++ )
+                if (text[i] == '\n')

             currentLine++;
             currentLine++;

-        // Now get the text
-        int j;
-        for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
-            buf += text[i];
-    
-        g_free( text );
-        return buf;
+            // Now get the text
+            int j;
+            for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
+                buf += text[i];
+
+            g_free( text );
+            return buf;
+        }
+        else
+        {
+            return wxEmptyString;
+        }

     }
     else
     }
     else

-      return wxEmptyString;
-  }
-  else
-  {
-    if (lineNo == 0) return GetValue();
-    return wxEmptyString;
-  }
+    {
+        if (lineNo == 0) return GetValue();
+        return wxEmptyString;
+    }

 }
 
 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 {
 }
 
 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 {

-  wxFAIL_MSG( "wxTextCtrl::OnDropFiles not implemented" );
+  /* If you implement this, don't forget to update the documentation!
+   * (file docs/latex/wx/text.tex) */
+    wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );

 }
 
 }
 

-long wxTextCtrl::PositionToXY( long WXUNUSED(pos), long *WXUNUSED(x), long *WXUNUSED(y) ) const
+bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const

 {
 {

-  wxFAIL_MSG( "wxTextCtrl::XYToPosition not implemented" );
-  
-  return 0;
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        wxString text = GetValue();
+
+        // cast to prevent warning. But pos really should've been unsigned.
+        if( (unsigned long)pos > text.length()  )
+            return false;
+
+        *x=0;   // First Col
+        *y=0;   // First Line
+
+        const wxChar* stop = text.c_str() + pos;
+        for ( const wxChar *p = text.c_str(); p < stop; p++ )
+        {
+            if (*p == wxT('\n'))
+            {
+                (*y)++;
+                *x=0;
+            }
+            else
+                (*x)++;
+        }
+    }
+    else // single line control
+    {
+        if ( pos <= GTK_ENTRY(m_text)->text_length )
+        {
+            *y = 0;
+            *x = pos;
+        }
+        else
+        {
+            // index out of bounds
+            return false;
+        }
+    }
+
+    return true;

 }
 
 }
 

-long wxTextCtrl::XYToPosition( long WXUNUSED(x), long WXUNUSED(y) ) const
+long wxTextCtrl::XYToPosition(long x, long y ) const

 {
 {

-  wxFAIL_MSG( "wxTextCtrl::XYToPosition not implemented" );
-  
-  return 0;
+    if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
+
+    long pos=0;
+    for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
+
+    pos += x;
+    return pos;

 }
 
 int wxTextCtrl::GetLineLength(long lineNo) const
 {
     wxString str = GetLineText (lineNo);
 }
 
 int wxTextCtrl::GetLineLength(long lineNo) const
 {
     wxString str = GetLineText (lineNo);

-    return (int) str.Length();
+    return (int) str.length();

 }
 
 int wxTextCtrl::GetNumberOfLines() const
 {
 }
 
 int wxTextCtrl::GetNumberOfLines() const
 {

-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_text) );
-    char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
-
-    if (text)
+    if (m_windowStyle & wxTE_MULTILINE)

     {
     {

-        int currentLine = 0;
-        for (int i = 0; i < len; i++ )
-          if (text[i] == '\n')
-            currentLine++;
-    
-        g_free( text );
-        return currentLine;
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+
+        if (text)
+        {
+            int currentLine = 0;
+            for (int i = 0; i < len; i++ )
+            {
+                if (text[i] == '\n')
+                    currentLine++;
+            }
+            g_free( text );
+
+            // currentLine is 0 based, add 1 to get number of lines
+            return currentLine + 1;
+        }
+        else
+        {
+            return 0;
+        }

     }
     else
     }
     else

-      return 0;
-  }
-  else
-  {
-    return 1;
-  }
+    {
+        return 1;
+    }

 }
 
 void wxTextCtrl::SetInsertionPoint( long pos )
 {
 }
 
 void wxTextCtrl::SetInsertionPoint( long pos )
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  int tmp = (int) pos;
-  if (m_windowStyle & wxTE_MULTILINE)
-    gtk_text_set_point( GTK_TEXT(m_text), tmp );
-  else
-    gtk_entry_set_position( GTK_ENTRY(m_text), tmp );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if ( IsMultiLine() )
+    {
+        gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
+          GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+        /* we fake a set_point by inserting and deleting. as the user
+           isn't supposed to get to know about this non-sense, we
+           disconnect so that no events are sent to the user program. */
+
+        gint tmp = (gint)pos;
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
+        gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
+
+        gtk_signal_connect( GTK_OBJECT(m_text), "changed",
+          GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+        // bring editable's cursor uptodate. Bug in GTK.
+        SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
+    }
+    else
+    {
+        gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
+
+        // Bring editable's cursor uptodate. Bug in GTK.
+        SET_EDITABLE_POS(m_text, (guint32)pos);
+    }

 }
 
 void wxTextCtrl::SetInsertionPointEnd()
 {
 }
 
 void wxTextCtrl::SetInsertionPointEnd()
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  int pos = 0;
-  if (m_windowStyle & wxTE_MULTILINE)
-    pos = gtk_text_get_length( GTK_TEXT(m_text) );
-  else
-    pos = GTK_ENTRY(m_text)->text_length;
-  SetInsertionPoint((pos-1)>0 ? (pos-1):0);
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
+    }
+    else
+    {
+        gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
+    }

 }
 
 void wxTextCtrl::SetEditable( bool editable )
 {
 }
 
 void wxTextCtrl::SetEditable( bool editable )
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  if (m_windowStyle & wxTE_MULTILINE)
-    gtk_text_set_editable( GTK_TEXT(m_text), editable );
-  else
-    gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        gtk_text_set_editable( GTK_TEXT(m_text), editable );
+    }
+    else
+    {
+        gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
+    }
+}
+
+void wxTextCtrl::DoEnable( bool enable )
+{
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        gtk_text_set_editable( GTK_TEXT(m_text), enable );
+    }
+    else
+    {
+        gtk_widget_set_sensitive( m_text, enable );
+    }
+}
+
+// wxGTK-specific: called recursively by Enable,
+// to give widgets an oppprtunity to correct their colours after they
+// have been changed by Enable
+void wxTextCtrl::OnEnabled( bool WXUNUSED(enable) )
+{
+    if ( IsSingleLine() )
+        return;
+
+    // If we have a custom background colour, we use this colour in both
+    // disabled and enabled mode, or we end up with a different colour under the
+    // text.
+    wxColour oldColour = GetBackgroundColour();
+    if (oldColour.IsOk())
+    {
+        // Need to set twice or it'll optimize the useful stuff out
+        if (oldColour == * wxWHITE)
+            SetBackgroundColour(*wxBLACK);
+        else
+            SetBackgroundColour(*wxWHITE);
+        SetBackgroundColour(oldColour);
+    }
+}
+
+void wxTextCtrl::MarkDirty()
+{
+    m_modified = true;
+}
+
+void wxTextCtrl::DiscardEdits()
+{
+    m_modified = false;
+}
+
+// ----------------------------------------------------------------------------
+// max text length support
+// ----------------------------------------------------------------------------
+
+void wxTextCtrl::IgnoreNextTextUpdate()
+{
+    m_ignoreNextUpdate = true;
+}
+
+bool wxTextCtrl::IgnoreTextUpdate()
+{
+    if ( m_ignoreNextUpdate )
+    {
+        m_ignoreNextUpdate = false;
+
+        return true;
+    }
+
+    return false;
+}
+
+void wxTextCtrl::SetMaxLength(unsigned long len)
+{
+    if ( !HasFlag(wxTE_MULTILINE) )
+    {
+        gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
+
+        // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
+        // we had tried to enter more text than allowed by max text length and
+        // the text wasn't really changed
+        //
+        // to detect this and generate TEXT_MAXLEN event instead of
+        // TEXT_CHANGED one in this case we also catch "insert_text" signal
+        //
+        // when max len is set to 0 we disconnect our handler as it means that
+        // we shouldn't check anything any more
+        if ( len )
+        {
+            gtk_signal_connect( GTK_OBJECT(m_text),
+                                "insert_text",
+                                GTK_SIGNAL_FUNC(gtk_insert_text_callback),
+                                (gpointer)this);
+        }
+        else // no checking
+        {
+            gtk_signal_disconnect_by_func
+            (
+                GTK_OBJECT(m_text),
+                GTK_SIGNAL_FUNC(gtk_insert_text_callback),
+                (gpointer)this
+            );
+        }
+    }

 }
 
 void wxTextCtrl::SetSelection( long from, long to )
 {
 }
 
 void wxTextCtrl::SetSelection( long from, long to )
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (from == -1 && to == -1)
+    {
+        from = 0;
+        to = GetValue().length();
+    }
+
+    if ( (m_windowStyle & wxTE_MULTILINE) &&
+         !GTK_TEXT(m_text)->line_start_cache )
+    {
+        // tell the programmer that it didn't work
+        wxLogDebug(wxT("Can't call SetSelection() before realizing the control"));
+        return;
+    }
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+    }
+    else
+    {
+        gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+    }

 }
 
 }
 

-void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
+void wxTextCtrl::ShowPosition( long pos )

 {
 {

-  wxFAIL_MSG( "wxTextCtrl::ShowPosition not implemented" );
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
+        float totalLines =  (float) GetNumberOfLines();
+        long posX;
+        long posY;
+        PositionToXY(pos, &posX, &posY);
+        float posLine = (float) posY;
+        float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
+        gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
+    }

 }
 
 long wxTextCtrl::GetInsertionPoint() const
 {
 }
 
 long wxTextCtrl::GetInsertionPoint() const
 {

-  wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
-  
-  return (long) GTK_EDITABLE(m_text)->current_pos;
+    wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
+    return (long) GET_EDITABLE_POS(m_text);

 }
 
 }
 

-long wxTextCtrl::GetLastPosition() const
+wxTextPos wxTextCtrl::GetLastPosition() const

 {
 {

-  wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
-  
-  int pos = 0;
-  if (m_windowStyle & wxTE_MULTILINE)
-    pos = gtk_text_get_length( GTK_TEXT(m_text) );
-  else
-    pos = GTK_ENTRY(m_text)->text_length;
-  return (long)pos-1;
+    wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
+
+    int pos = 0;
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        pos = gtk_text_get_length( GTK_TEXT(m_text) );
+    }
+    else
+    {
+        pos = GTK_ENTRY(m_text)->text_length;
+    }
+
+    return (long)pos;

 }
 
 void wxTextCtrl::Remove( long from, long to )
 {
 }
 
 void wxTextCtrl::Remove( long from, long to )
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+    gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );

 }
 
 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 {
 }
 
 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
-  if (value.IsNull()) return;
-  gint pos = (gint)to;
-  gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    Remove( from, to );
+
+    if (!value.empty())
+    {
+        gint pos = (gint)from;
+#if wxUSE_UNICODE
+        wxWX2MBbuf buf = value.mbc_str();
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
+#else
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.length(), &pos );
+#endif // wxUSE_UNICODE
+    }

 }
 
 void wxTextCtrl::Cut()
 {
 }
 
 void wxTextCtrl::Cut()
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-#if (GTK_MINOR_VERSION == 1)
-  gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
-#else
-  gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
-#endif
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+    gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);

 }
 
 void wxTextCtrl::Copy()
 {
 }
 
 void wxTextCtrl::Copy()
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-#if (GTK_MINOR_VERSION == 1)
-  gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
-#else
-  gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
-#endif
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+    gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);

 }
 
 void wxTextCtrl::Paste()
 {
 }
 
 void wxTextCtrl::Paste()
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-#if (GTK_MINOR_VERSION == 1)
-  gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
-#else
-  gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
-#endif
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+    gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
+}
+
+// Undo/redo
+void wxTextCtrl::Undo()
+{
+    // TODO
+    wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
+}
+
+void wxTextCtrl::Redo()
+{
+    // TODO
+    wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
+}
+
+bool wxTextCtrl::CanUndo() const
+{
+    // TODO
+    //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
+    return false;
+}
+
+bool wxTextCtrl::CanRedo() const
+{
+    // TODO
+    //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
+    return false;
+}
+
+// If the return values from and to are the same, there is no
+// selection.
+void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
+{
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    gint from = -1;
+    gint to = -1;
+    bool haveSelection = false;
+
+     if ( (GTK_EDITABLE(m_text)->has_selection) )
+     {
+         haveSelection = true;
+         from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
+         to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
+     }
+
+     if (! haveSelection )
+          from = to = GetInsertionPoint();
+
+     if ( from > to )
+     {
+         // exchange them to be compatible with wxMSW
+         gint tmp = from;
+         from = to;
+         to = tmp;
+     }
+
+    if ( fromOut )
+        *fromOut = from;
+    if ( toOut )
+        *toOut = to;
+}
+
+
+bool wxTextCtrl::IsEditable() const
+{
+    wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
+    return GTK_EDITABLE(m_text)->editable;
+}
+
+bool wxTextCtrl::IsModified() const
+{
+    return m_modified;

 }
 
 void wxTextCtrl::Clear()
 {
 }
 
 void wxTextCtrl::Clear()
 {

-  SetValue( "" );
+    SetValue( wxEmptyString );

 }
 
 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 {
 }
 
 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 {

-  if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
-  {
-    wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
-    event.SetEventObject(this);
-    if (GetEventHandler()->ProcessEvent(event)) return;
-  }
-  else if (key_event.KeyCode() == WXK_TAB) 
-  {
-    wxNavigationKeyEvent event;
-    event.SetDirection( key_event.m_shiftDown );
-    event.SetWindowChange(FALSE);
-    event.SetEventObject(this);
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxTE_PROCESS_ENTER))
+    {
+        wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
+        event.SetEventObject(this);
+        event.SetString(GetValue());
+        if (HandleWindowEvent(event)) return;
+    }
+
+    if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
+    {
+        // This will invoke the dialog default action, such
+        // as the clicking the default button.
+
+        wxWindow *top_frame = m_parent;
+        while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
+            top_frame = top_frame->GetParent();
+
+        if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
+        {
+            GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
+
+            if (window->default_widget)
+            {
+                gtk_widget_activate (window->default_widget);
+                return;
+            }
+        }
+    }

 
 

-    if (GetEventHandler()->ProcessEvent(event)) return;
-  }
-  key_event.Skip();
+    key_event.Skip();

 }
 
 }
 

-int wxTextCtrl::overflow( int WXUNUSED(c) )
+GtkWidget* wxTextCtrl::GetConnectWidget()

 {
 {

-  int len = pptr() - pbase();
-  char *txt = new char[len+1];
-  strncpy(txt, pbase(), len);
-  txt[len] = '\0';
-  (*this) << txt;
-  setp(pbase(), epptr());
-  delete[] txt;
-  return EOF;
+    return GTK_WIDGET(m_text);

 }
 
 }
 

-int wxTextCtrl::sync()
+bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )

 {
 {

-  int len = pptr() - pbase();
-  char *txt = new char[len+1];
-  strncpy(txt, pbase(), len);
-  txt[len] = '\0';
-  (*this) << txt;
-  setp(pbase(), epptr());
-  delete[] txt;
-  return 0;
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        return (window == GTK_TEXT(m_text)->text_area);
+    }
+    else
+    {
+        return (window == GTK_ENTRY(m_text)->text_area);
+    }

 }
 
 }
 

-int wxTextCtrl::underflow()
+// the font will change for subsequent text insertiongs
+bool wxTextCtrl::SetFont( const wxFont &font )

 {
 {

-  return EOF;
+    wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
+
+    if ( !wxTextCtrlBase::SetFont(font) )
+    {
+        // font didn't change, nothing to do
+        return false;
+    }
+
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        SetUpdateFont(true);
+
+        m_defaultStyle.SetFont(font);
+
+        ChangeFontGlobally();
+    }
+
+    return true;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
+void wxTextCtrl::ChangeFontGlobally()

 {
 {

-  WriteText(s);
-  return *this;
+    // this method is very inefficient and hence should be called as rarely as
+    // possible!
+    wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
+
+                  wxT("shouldn't be called for single line controls") );
+
+    wxString value = GetValue();
+    if ( !value.empty() )
+    {
+        SetUpdateFont(false);
+
+        Clear();
+        AppendText(value);
+    }

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(float f)
+void wxTextCtrl::UpdateFontIfNeeded()

 {
 {

-  static char buf[100];
-  sprintf(buf, "%.2f", f);
-  WriteText(buf);
-  return *this;
+    if ( m_updateFont )
+        ChangeFontGlobally();

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(double d)
+bool wxTextCtrl::SetForegroundColour(const wxColour& colour)

 {
 {

-  static char buf[100];
-  sprintf(buf, "%.2f", d);
-  WriteText(buf);
-  return *this;
+    if ( !wxControl::SetForegroundColour(colour) )
+        return false;
+
+    // update default fg colour too
+    m_defaultStyle.SetTextColour(colour);
+
+    return true;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(int i)
+bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )

 {
 {

-  static char buf[100];
-  sprintf(buf, "%i", i);
-  WriteText(buf);
-  return *this;
+    wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
+
+    if ( !wxControl::SetBackgroundColour( colour ) )
+        return false;
+
+    if (!m_widget->window)
+        return false;
+
+    if (!m_backgroundColour.IsOk())
+        return false;
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        GdkWindow *window = GTK_TEXT(m_text)->text_area;
+        if (!window)
+            return false;
+        m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
+        gdk_window_set_background( window, m_backgroundColour.GetColor() );
+        gdk_window_clear( window );
+    }
+
+    // change active background color too
+    m_defaultStyle.SetBackgroundColour( colour );
+
+    return true;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(long i)
+bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )

 {
 {

-  static char buf[100];
-  sprintf(buf, "%ld", i);
-  WriteText(buf);
-  return *this;
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        if ( style.IsDefault() )
+        {
+            // nothing to do
+            return true;
+        }
+
+        // VERY dirty way to do that - removes the required text and re-adds it
+        // with styling (FIXME)
+
+        gint l = gtk_text_get_length( GTK_TEXT(m_text) );
+
+        wxCHECK_MSG( start >= 0 && end <= l, false,
+                     wxT("invalid range in wxTextCtrl::SetStyle") );
+
+        gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
+        wxString tmp(text,*wxConvCurrent);
+        g_free( text );
+
+        gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
+        gtk_editable_set_position( GTK_EDITABLE(m_text), start );
+
+    #if wxUSE_UNICODE
+        wxWX2MBbuf buf = tmp.mbc_str();
+        const char *txt = buf;
+        size_t txtlen = strlen(buf);
+    #else
+        const char *txt = tmp;
+        size_t txtlen = tmp.length();
+    #endif
+
+        // use the attributes from style which are set in it and fall back
+        // first to the default style and then to the text control default
+        // colours for the others
+        wxGtkTextInsert(m_text,
+                        wxTextAttr::Combine(style, m_defaultStyle, this),
+                        txt,
+                        txtlen);
+
+        /* does not seem to help under GTK+ 1.2 !!!
+        gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
+        SetInsertionPoint( old_pos );
+
+        return true;
+    }
+
+    // else single line
+    // cannot do this for GTK+'s Entry widget
+    return false;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(const char c)
+void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)

 {
 {

-  char buf[2];
+    gtk_widget_modify_style(m_text, style);
+}

 
 

-  buf[0] = c;
-  buf[1] = 0;
-  WriteText(buf);
-  return *this;
+void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
+{
+    Cut();

 }
 
 }
 

-GtkWidget* wxTextCtrl::GetConnectWidget()
+void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))

 {
 {

-  return GTK_WIDGET(m_text);
+    Copy();

 }
 
 }
 

-bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
+void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+    Paste();
+}
+
+void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
+{
+    Undo();
+}
+
+void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
+{
+    Redo();
+}
+
+void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCut() );
+}
+
+void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCopy() );
+}
+
+void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)

 {
 {

-  if (m_windowStyle & wxTE_MULTILINE)
-    return (window == GTK_TEXT(m_text)->text_area);
-  else
-    return (window == GTK_ENTRY(m_text)->text_area);
+    event.Enable( CanPaste() );

 }
 
 }
 

-void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
+void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)

 {
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  // doesn't work
+    event.Enable( CanUndo() );

 }
 
 }
 

-void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
+void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)

 {
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
-  
-  // doesn't work
+    event.Enable( CanRedo() );

 }
 
 }
 

-void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
+void wxTextCtrl::OnInternalIdle()

 {
 {

-  wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
+    wxCursor cursor = m_cursor;
+    if (g_globalCursor.IsOk()) cursor = g_globalCursor;
+
+    if (cursor.IsOk())
+    {
+        GdkWindow *window = NULL;
+        if (HasFlag(wxTE_MULTILINE))
+            window = GTK_TEXT(m_text)->text_area;
+        else
+            window = GTK_ENTRY(m_text)->text_area;
+
+        if (window)
+            gdk_window_set_cursor( window, cursor.GetCursor() );
+
+        if (!g_globalCursor.IsOk())
+            cursor = *wxSTANDARD_CURSOR;
+
+        window = m_widget->window;
+        if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
+            gdk_window_set_cursor( window, cursor.GetCursor() );
+    }

 
 

-  wxControl::SetBackgroundColour( colour );
-    
-  if (!m_backgroundColour.Ok()) return;
-  
-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    GdkWindow *window = GTK_TEXT(m_text)->text_area;
-    m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
-    gdk_window_set_background( window, m_backgroundColour.GetColor() );
-    gdk_window_clear( window );
-  }
+    if (g_delayedFocus == this)
+    {
+        if (GTK_WIDGET_REALIZED(m_widget))
+        {
+            gtk_widget_grab_focus( m_widget );
+            g_delayedFocus = NULL;
+        }
+    }
+
+    if (wxUpdateUIEvent::CanUpdate(this))
+        UpdateWindowUI(wxUPDATE_UI_FROMIDLE);

 }
 
 }
 

-void wxTextCtrl::ApplyWidgetStyle()
+wxSize wxTextCtrl::DoGetBestSize() const

 {
 {

-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-  }
-  else
-  {
-    SetWidgetStyle();
-    gtk_widget_set_style( m_text, m_widgetStyle );
-  }
+    // FIXME should be different for multi-line controls...
+    wxSize ret( wxControl::DoGetBestSize() );
+    wxSize best(80, ret.y);
+    CacheBestSize(best);
+    return best;

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// freeze/thaw
+// ----------------------------------------------------------------------------
+
+void wxTextCtrl::DoFreeze()
+{
+    if ( HasFlag(wxTE_MULTILINE) )
+    {
+        gtk_text_freeze(GTK_TEXT(m_text));
+    }
+}
+
+void wxTextCtrl::DoThaw()
+{
+    if ( HasFlag(wxTE_MULTILINE) )
+    {
+        GTK_TEXT(m_text)->vadj->value = 0.0;
+
+        gtk_text_thaw(GTK_TEXT(m_text));
+    }
+}
+
+// ----------------------------------------------------------------------------
+// scrolling
+// ----------------------------------------------------------------------------
+
+GtkAdjustment *wxTextCtrl::GetVAdj() const
+{
+    if ( !IsMultiLine() )
+        return NULL;
+
+    return GTK_TEXT(m_text)->vadj;
+}
+
+bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
+{
+    float value = adj->value + diff;
+
+    if ( value < 0 )
+        value = 0;
+
+    float upper = adj->upper - adj->page_size;
+    if ( value > upper )
+        value = upper;
+
+    // did we noticeably change the scroll position?
+    if ( fabs(adj->value - value) < 0.2 )
+    {
+        // well, this is what Robert does in wxScrollBar, so it must be good...
+        return false;
+    }
+
+    adj->value = value;
+    gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
+
+    return true;
+}
+
+bool wxTextCtrl::ScrollLines(int lines)
+{
+    GtkAdjustment *adj = GetVAdj();
+    if ( !adj )
+        return false;
+
+    // this is hardcoded to 10 in GTK+ 1.2 (great idea)
+    int diff = 10*lines;
+
+    return DoScroll(adj, diff);
+}
+
+bool wxTextCtrl::ScrollPages(int pages)
+{
+    GtkAdjustment *adj = GetVAdj();
+    if ( !adj )
+        return false;
+
+    return DoScroll(adj, (int)ceil(pages*adj->page_increment));
+}
+
+
+// static
+wxVisualAttributes
+wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
+{
+    return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
+}